12013455 has 8 divisors (see below), whose sum is σ = 19221552. Its totient is φ = 6407168.

The previous prime is 12013447. The next prime is 12013459. The reversal of 12013455 is 55431021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12013455 - 2³ = 12013447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400434 + ... + 400463.

It is an arithmetic number, because the mean of its divisors is an integer number (2402694).

Almost surely, 2^12013455 is an apocalyptic number.

12013455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12013455 is a deficient number, since it is larger than the sum of its proper divisors (7208097).

12013455 is an equidigital number, since it uses as much as digits as its factorization.

12013455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800905.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 12013455 is about 3466.0431330265. The cubic root of 12013455 is about 229.0283839394.

Adding to 12013455 its reverse (55431021), we get a palindrome (67444476).

It can be divided in two parts, 1201 and 3455, that added together give a triangular number (4656 = T₉₆).

The spelling of 12013455 in words is "twelve million, thirteen thousand, four hundred fifty-five".